#include <iostream>
#include <vector>
#include <string>
#include <stack>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <algorithm>
#include <map>
#include <set>
#include <functional>
using namespace std;

class Solution 
{
public:
    vector<int> twoSum(vector<int>& nums, int target) 
    {
        
    }
};